diff options
| author |   David S. Miller <davem@davemloft.net> | 2012-03-29 05:11:39 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-04-01 18:11:37 -0400 |
| commit | 1b34ec43c9b3de44a5420841ab293d1b2035a94c (patch) | |
| tree | 8d6cf966c813e0e61001655179b5ef8e5f1b54b3 /net/sched/act_api.c | |
| parent | wireless: Stop using NLA_PUT*(). (diff) | |
| download | linux-dev-1b34ec43c9b3de44a5420841ab293d1b2035a94c.tar.xz linux-dev-1b34ec43c9b3de44a5420841ab293d1b2035a94c.zip | |
pkt_sched: Stop using NLA_PUT*().
These macros contain a hidden goto, and are thus extremely error
prone and make code hard to audit.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/act_api.c')
| -rw-r--r-- | net/sched/act_api.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 93fdf131bd75..5cfb160df063 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -127,7 +127,8 @@ static int tcf_del_walker(struct sk_buff *skb, struct tc_action *a, nest = nla_nest_start(skb, a->order); if (nest == NULL) goto nla_put_failure; - NLA_PUT_STRING(skb, TCA_KIND, a->ops->kind); + if (nla_put_string(skb, TCA_KIND, a->ops->kind)) + goto nla_put_failure; for (i = 0; i < (hinfo->hmask + 1); i++) { p = hinfo->htab[tcf_hash(i, hinfo->hmask)]; @@ -139,7 +140,8 @@ static int tcf_del_walker(struct sk_buff *skb, struct tc_action *a, p = s_p; } } - NLA_PUT_U32(skb, TCA_FCNT, n_i); + if (nla_put_u32(skb, TCA_FCNT, n_i)) + goto nla_put_failure; nla_nest_end(skb, nest); return n_i; @@ -437,7 +439,8 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref) if (a->ops == NULL || a->ops->dump == NULL) return err; - NLA_PUT_STRING(skb, TCA_KIND, a->ops->kind); + if (nla_put_string(skb, TCA_KIND, a->ops->kind)) + goto nla_put_failure; if (tcf_action_copy_stats(skb, a, 0)) goto nla_put_failure; nest = nla_nest_start(skb, TCA_OPTIONS); |